There was a bunch of mint growing in front of my friend Jeff's house and they were going to move, so I dug some up. They didn't like it. It kept coming up under the border, on the lawn, because it spreads by roots. I think that's fine!
This has some of the mint from the photo above (lower right) and some vinca (#11 below, near the tree trunk):
Here are some clickable enlargeable ones. The tallest plants get to be 2 and a half feet tall or so (75 cm or a little more). The babies come right up from spreading roots, and there are some near a New Mexico quarter and a Flair pen (sorry for those without full famliarity with Flairs and quarters). Oh! And one of those, I noticed when I saw the full size image, has some dead bug parts. Grasshopper and maybe a spider? One of those with the quarter.